<template>
  <transition name="el-zoom-in-center">
    <div
      aria-hidden="true"
      class="el-dropdown__popper el-popper is-light is-pure custom-contextmenu"
      role="tooltip"
      data-popper-placement="bottom"
      :style="`top: ${dropdowns.y + 5}px;left: ${dropdowns.x}px;`"
      :key="Math.random()"
      v-show="isShow"
    >
      <ul class="el-dropdown-menu">
        <li
          v-for="(v, k) in dropdownList"
          class="el-dropdown-menu__item"
          aria-disabled="false"
          tabindex="-1"
          :key="k"
          @click="onCurrentClick(v.contextMenuClickId)"
        >
          <SvgIcon :name="v.icon" />
          <span>{{ v.txt }}{{ "条件" }}</span>
        </li>
      </ul>
      <div class="el-popper__arrow" style="left: 10px"></div>
    </div>
  </transition>
</template>

<script lang="ts">
import { computed, defineComponent, reactive, toRefs, onMounted, onUnmounted } from "vue";

export default defineComponent({
  name: "pagesWorkflowContextmenu",
  props: {
    dropdown: {
      type: Object,
    },
  },
  setup(props, { emit }) {
    const state = reactive({
      isShow: false,
      dropdownList: [
        { contextMenuClickId: 0, txt: "删除", icon: "ele-Delete" },
        { contextMenuClickId: 1, txt: "编辑", icon: "ele-Edit" },
      ],
      item: {
        type: "node",
        value: "",
      },
      conn: {},
    });
    // 父级传过来的坐标 x,y 值
    const dropdowns = computed(() => {
      return <any>props.dropdown;
    });
    // 当前项菜单点击
    const onCurrentClick = (contextMenuClickId: number) => {
      emit(
        "currentline",
        { contextMenuClickId, ...state.item, result: state.item.value },
        state.conn
      );
    };
    // 打开右键菜单：判断是否固定，固定则不显示关闭按钮
    const openContextmenu = (item: any, conn = {}) => {
  
      state.item = item;
      state.conn = conn;
      closeContextmenu();
      setTimeout(() => {
        state.isShow = true;
      }, 10);
    };
    // 关闭右键菜单
    const closeContextmenu = () => {
      state.isShow = false;
    };
    // 监听页面监听进行右键菜单的关闭
    onMounted(() => {
      document.body.addEventListener("click", closeContextmenu);
      document.body.addEventListener("contextmenu", closeContextmenu);
    });
    // 页面卸载时，移除右键菜单监听事件
    onUnmounted(() => {
      document.body.removeEventListener("click", closeContextmenu);
      document.body.removeEventListener("contextmenu", closeContextmenu);
    });
    return {
      dropdowns,
      openContextmenu,
      closeContextmenu,
      onCurrentClick,
      ...toRefs(state),
    };
  },
});
</script>

<style scoped lang="scss">
.custom-contextmenu {
  transform-origin: center top;
  z-index: 2190;
  position: fixed;
  .el-dropdown-menu__item {
    font-size: 12px !important;
    white-space: nowrap;
    i {
      font-size: 12px !important;
    }
  }
}
</style>
